Invalid-bedstead.



E. asumanan.

iIIVALID BEDSTEAD.

(ppmrion med Nov. 7, 189s.,

Patented my la, |399.

(No Modal.)

4 sheets-sheet www@ A TTOHNE YS No. 629,275. Patented .IuIy I8, |899.

' E. C. SCBIBNER.

INVALID BEIISTEAD.V

(Application led Nav. 7, 1898,)

4 Sheets-Sheet 2.

@No Model.)

mm. w M T w Arme/VHS.

No. 629,275. Patented my 1s, 1899.

E. C. SCRIBNER.

iNVALlD BEDSTEAD. :Application lcd No?, 7, 1898A) (No Model.) 4Sheets-Sheet 3.

Wl' TNE SSE S f fw. c2. @W

YH: Noms mns cn, moro-dmc.. wsmuaron, n. c.

N0. 629,275. Patented Iuly I8, |899. E. C. SCRIBNER.

lNVALID BEDSTEAD.

(Applicat'on led Nov. 7, 1898.) v

' 4 sheets-sheet 4.

' A TTOHNEYS.

TH: wams were am cnam-Hu. wsmnaron. u. c.

UNITED Seit/.rines v PfrnNr OFFICE.

ELMER- c. soRrBNER, on NEvERsINK, NEW Yonir.

v INVALID-BEDSTEAD.

SPECIFICATION forming part of Letters Patent No. 629,275, dated. July1s, ieee.l Application sied November r1, 1898. serai No. 695.703. di@man.)

lid-bedsteads having sectional bottom por` tions capable of beingadjusted to lift the body or head or the lower extremitiesof the patientand in which provision yis also made for raising the patientfrom andextending him above the bed-bottom.

Primarily my invention has for its purpose to provide abedstead of thecharacter stated of a stable and economical construction in" which allof the parts are conveniently arranged and easily manipulated.

This invention also coniprehends a novel construction of sectionalbottom members having the foot'portion formed of tvv'olongi` tudinalframes capable of being raised in unison or independently and a singlecrank-'operated mechanism, including shifting clutch devices adapted tobe quickly shifted into 0I" out of an operative position, wherebyeitherone of the said foot-frames or both of the said frames can be elevated,as conditions may make desirable.

Another feature of this invention lies in' making the longitudinallytiltable footframes each of two hinged sections, whereby! When elevatedthey may assumean angle shape to accommodate the bending of the knee ofthe patient, in connection with simple and easily-operated locking meansfor securing the two sections to form a rigid frame.

In its subordinate features this invention consists in certain detailsand novel combination of parts hereinafter first described in detailandthen specifically pointedout inthe appended claims, reference beinghad'to the accompanying drawings, in which#h Figure l is a perspectiveView of my im`l proved bedstead, the head and foot sections being heldflat and the supporting-hammock in place. Fig. 2 is a side elevation ofwthe same,

partly in section, the hammock being omitted, one of the foot-sectionsbeing shown elevated as a rigid body', the other being shown in aknee-elevating position.

verse section taken practically on the line 3 3 of Fig. 2, one of thefoot-sections being Fig. 3 is a trans,-l

shown elevatedA andI the other lowered, the clutch members for the lowersection being shown out et gear. Fig. 4 is a detail plan ,view ofthe'drive-gear 'for operating' the footsections.l Fig.' 5 is'adetail'crosssection of the same on the line 5 5 of Figgfi. Fig. 6 is aninverted plan v ievvr of fthe completebed Fig. Tis. an inverted detailperspectiveof a -portionot one -of the foot-sections, rparticularlyshowing the lock device for holding the two parts forming the saidfoot-section locked frompivotal movement. Fig. 8 is a' detail vview oi'the hammock-elevatin g device.A Fig.

.9 is a detail cross-section on the line 9 9 of Fig. l, and Fig. l() isa detail vievvof a porvtion ofthe hammock. f

In thedrawings, 1 l indicate the cornerposts, and 2 the'side bars,whichare'detachably connected with the posts in the ordinary manner, saidbars being, of the conventional langle shape, their foot portionsv inthepresent form being connected by a l-Tl-shaped cross-bar 3, which forms asupporting member for the outer end of the sectional outwardly-extendingT-shapedrest-bar et, the in ner end 'of which is-integrally formed with,the central cross-bar 5, which bar, as also'the end supporting member,maybeintegrally ordetachably'joinediwithlthe side bars 2 The bodyorrrest portion of vthe -bed consists of a head-frame" 6 andY afoot-frame 4formed of two longitudinal sections, the specialconstruction of which, togetherwith the operating-gearing for adjustingsaid-section, forming lthe most essential feature of this invention.V YY The yhead-frame 6 consists of a series of cross-bars (slats) shaped incross-section, the ends thereof terminatingin dat portions which areweldedor otherwise made secure `to the'L-shaped connecting-bars 6b,adapted to lap and rest on 'the' side bars 2'when the frame 6 is down toits lowermost position.-

The inner ends of the bars 6i have pivotal vconnections tit (see'Filgs.2'annd 6)With the side bars 2, which forms the fulcr'um-point for theframe 6 when elevated.

Any suitable'means may be employed for raising the head-piece, as thespecial lconstruction of the same forms no part'ofthis invention; butI-preferto employ a single transversely-journaled crank-operated shaft8, having rightV and left threads S Sb at ,the

IOO

opposite ends, with which engage the internally-thread edreciprocally-movable followerblocks 9, to each of which ispivotallyjoined Vone of the pair of cross-link bars 10, which are alsopivotally joined to the under side of one of the cross-slats of thehead-frame, as clearly shownin Fig. G, and to properly support the saidhead-'frame link-braces 11 are provided,pivotally connected to one endof the side bars 2 and at the other end to the side members of the saidframe.

By constructing the head-frame and providing elevating means therefor,as stated, it is obvious that by a proper manipulation of thedouble-screw shaft Vthe said frame can be raised or lowered as desiredand held to any point of its adjustment.

The foot portion of the bed-bodyconsists of a pair of longitudinalframes extending from the cross-bar 5 to the footY end, and which-frames comprise a series of transverse shaped bars (slats) l2,joined attheir ends to L-shaped connecting-bars 13 13, the outer ones, 13, ofwhich are held to lap the side bars 2, while the inner ones, 13, areadapted to rest on the sectional T-shaped longitudinal brace-bar. Theinner ends of the bars 13 have a pivotal connection 13X with the sidebars 2, and the Y inner bars 13a have a similar connection with Ythreads and threaded follower-blocks being employed.` In addition tosuch devices mechanism is combined therewith in the nature of shiftingclutch devices for setting the threaded follower-blocks either inposition to elevate one foot-frame while the other frame is at rest orto elevate both frames at the same time. For this purpose thescrew-shaft 14 has its eXtreme outer ends formed with nonthreadedportions 14 and centrally with a similar non-threaded portion 14h, thepurpose -of such. non-threaded portions being to provide seats orrest-bearings for the followerblocks 15 15 when shifted to aninoperative position. The blocks 15 are normally held to engage thethreaded portion of the shaft 14, when it is to an operative position,by the coil-springsv 17 17, and to provide for conveniently and quicklyshifting the said blocks 1.5 15 to an inoperative position a pair ofshafts 19 20, traveling parallel with and adjacent the screw-shaft 14,(one at each side,) are provided, one of which extends the full lengthof the shaft 14, while the other extends but half the length thereof,its inner end being journaled on the inner web of the T- piece. Theshafts 19 20 are held to rock in their bearings and have their outerends provided adjacent the crank end of the rod 14 and are provid edwith angle members 19 20, adapted to be moved into engagement withdetents 21 when they are rocked to move the screw or journal blocks totheir inoperative position.

Each shaft 19 2O carries a pair of cam-disksV 22 22, the shaft at oneside having its cams engaging with the follower-blocks ofV one end frameand the cams of the other shaft engaging the other set offollower-blocks, each set of cam-disks being located on its shaft insuch manner as to engage with the follower-Y Wvhen the cam-disks are setin the position just mentioned, both foot-frames are moved verticallytogether whenV the Vshaft 14 is turned in a proper direction. Y Y

By rocking the shaft 2O to' the position shown in Fig. 4 the cam-diskswill be caused to engage the blocks inthe frame at one side, disengage,and hold them from engaging the screw-shaft 14, thereby leaving the saidshaft free to elevate the frame on the other side, it

being understood that by similarly. adjusting the other shaft 19 theframe on the other side will be held Vfrom rising. Y

To set the follower-blocks to an operative ICO porition, it is onlynecessary to turn the shafts 19 2O Yto disengage the cam-disks. Thecoilsprings will then move the follower-blocks to engage the threadedendsV of the shaft 14, which pair of follower-blocks for the footframeshas pivotal connection with the linkbraces 25, the outer ends of whichare pivotally joined to ears 26, held pendent from one of the cross barsor slats.

It will be noticed by reference to Fig. 3 that each link member 25consists of longitudinallyeXtensible sections joined to form a rigidmember by reason of one section having a pair of studs 26X, having aslotway 27 in the other section.

The object in making the link members extensible is to allow theadditional longitudinal movement necessary to shove the followerblocksto their inoperative point after the frames have been lowered to theirhorizontal position, which foot-,frame consists of two abuttingsections, the adjusting ends of the side bars thereof having a hingedjoint connection 26C, as best shown in Figs. 2 and 7, byy

reference to which it will be seen the crossbar 26, forming the outerend of the inner section, has integral pendent ears 26h, which form onepart of the rule hinged joint.

One or more of thel cross-bars at each side of the hinged point of thetwo frame-sections has pendent integral lock-brackets 27X, in which isheld to slide a T-shaped longitudinally-movable lock-bar 2S, to thefront end of which is connected, by means of the link- IIO joint 29, thehandle and guided inthe keeper 3l on the outermost one of thecross-bars.V

When the bar 28 is shifted to the position shown in Fig. 6, the twosections 'of the footframe will be locked together and be held to moveas one frame, as shown at Y in Fig. 2; but when such baris drawn outsufticiently to become disengaged from the pendent brackets on the innersection said frame-sections will be free to fold to the position shownat Z in Fig. 2 when said frame is raised by the screw-shaft. Thus thefoot-frames can be raised .to support and elevate the limb in a straightor extended position or `bend the limb and lift the knee above thethigh-point, as

conditions may make necessary or desirable.

It will be understood that in practice the bed-springs on which thebedclothing is supported are secured to the head and foot frames, asindicated in Fig. 2.

32 33 indicate a pair of 'longitudinal bars journaled'in end bearings 3434:, secured to or formed integral with corner-posts, one of such barshaving non-circularjournals,where by to prevent the bar 32 from turning,while the other bar 33 hasv round journals, it also having at one end aWinding gear-wheel 35, which meshes with a winding-pinion 36 on thecrank-shaft 37, provided with a pawl-andratchet device. (See Fig. 3.)

38 indicates the hammock or sling of canvas or other suitable material,the endsof which have slits 3S, engaged with the headed pins or buttons39 on the bars `32 33, it being manifest that as the sling on one sideis being wound it will fold closely over the heads of the buttons,holding the corresponding end of the sling from becoming disengaged withthe buttons on the other side of the sling taut on its buttons.

By providing the hammock or sling, as described, the patient can beeasily and quickly elevated when it is desired to adjust the head orfoot members without exerting any painful pressure on him.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In an invalid-bedstead a bottom having a plurality of longitudinally-arran ged tiltable frames; a single crank-operated mechanismfor raising andlowering said frames, said mechanism including shiftingclutch devices, whereby it can be set to tilt all of the frames inunison or each frame independent of the other, for the purposesspeciiied.

2. In an invalid-bedstead, a bottom comprising a tiltable frame formedof two sections hinged together at their meeting ends, a slidinglock-bar arranged in guides onthe under side of said sections, and meansconnected with the latter, at their hinge, as shown and described,whereby the sections may be elevated at their meeting ends or cen, teronly, and thusheld at an angle to each pmi-rod so, having a suitableported other, or may be locked together in alinement and elevated as onerigid frame, as specified.

3. The combination of the supportingframe, said frame including acentral supporting-bar extended to the foot end of the frame; of abottom formed of two longitudinal frames arranged parallel and adjacent,and having a pivotal support at their inner end on the side bars, andthe central bar, and also having pivotal link-braces connected with suchside and central bars; a crank-operated elevating screw-shank havingright and left threads; follower-blocks reciprocally movable on suchshaft, and link-arms connected to the follower-blocks and the tiltableframe, as set forth.

4. In combination with the main frame and the foot-frame supported onthe said main frame and having a pivotal bearing thereon at one end; ofthe single crank-operated shaft having a duplex set of right and leftthreads; a pair of follower-blocks for each set of right and leftshaft-threads; means for automatically moving said blocks to theirthread-engaging positions; extensible link-arms'connecting thelower-blocks out of engagement with the screw-shaft sections, for thepnrposesspecified.

5. In a bedstead as described; the combination With the mainsupporting-frame; the foot-end frames tiltably mounted on the mainframe; thesingle crank-operated screw-shafts; the follower-blocks; meansfor moving such blocks into their thread-engaging position, andlifting-link connections joining theblocks andthe tilting frames; ofmechanism for shifting and holding the follower-blocks out of engagementwith the screw portions of the shifting shaft, said mechanism comprisinga pair of rocking shafts, each having cam disks adapted to be moved intoengagement with thefolloWer-blocks and shove them endwise of the shaft,said rock-shafts having detents for holding them to an operativeposition, all being arranged substantially as shown and for the purposesdescribed.

6. A new and improved bedstead; comprisinga main frame; a hammock orsling supon the upper end thereof; means for elevating and lowering thesame; a bottom consisting of a tiltable head portion and a foot portioncomprising a pair of longitudinally-arranged tiltable frames, each framebeing formed of two sections, having a rulejoint connection, and havinga slidable locking-bar forinterlocking the two sections, and meanssubstantially as described, whereby the crank-operating mechanism mayraise both foot-frames in unison or each frame independcntly,substantially as specified.

ELMER C. SCRIBNER.

Witnesses:

JAMES H. DIvINE, J. CLAYTON SCRIBNER.

blocks and the tiltable frames, Y. .and means for shifting and holdingthe fol- IOO IIO

